package com.ruoyi.web.controller.common;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.ruoyi.common.utils.uuid.UUID;
import com.spire.doc.Document;
import com.spire.doc.FileFormat;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.MediaType;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.multipart.MultipartFile;
import com.ruoyi.common.config.Global;
import com.ruoyi.common.config.ServerConfig;
import com.ruoyi.common.constant.Constants;
import com.ruoyi.common.core.domain.AjaxResult;
import com.ruoyi.common.utils.StringUtils;
import com.ruoyi.common.utils.file.FileUploadUtils;
import com.ruoyi.common.utils.file.FileUtils;

/**
 * 通用请求处理
 *
 * @author ruoyi
 */
@Controller
public class CommonController
{
    private static final Logger log = LoggerFactory.getLogger(CommonController.class);

    @Autowired
    private ServerConfig serverConfig;

    /**
     * 通用下载请求
     *
     * @param fileName 文件名称
     * @param delete 是否删除
     */
    @GetMapping("common/download")
    public void fileDownload(String fileName, Boolean delete, HttpServletResponse response, HttpServletRequest request)
    {
        try
        {
            if (!FileUtils.isValidFilename(fileName))
            {
                throw new Exception(StringUtils.format("文件名称({})非法，不允许下载。 ", fileName));
            }
            String realFileName = System.currentTimeMillis() + fileName.substring(fileName.indexOf("_") + 1);
            String filePath = Global.getDownloadPath() + fileName;

            response.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE);
            FileUtils.setAttachmentResponseHeader(response, realFileName);

            FileUtils.writeBytes(filePath, response.getOutputStream());
            if (delete)
            {
                FileUtils.deleteFile(filePath);
            }
        }
        catch (Exception e)
        {
            log.error("下载文件失败", e);
        }
    }

    /**
     * 通用上传请求
     */
    @PostMapping("/common/upload")
    @ResponseBody
    public AjaxResult uploadFile(MultipartFile file) throws Exception {
        try {
            System.out.println(file);
            // 上传文件路径
            String filePath = Global.getUploadPath();
            // 上传并返回新文件名称
            String fileName = FileUploadUtils.upload(filePath, file);
            System.out.println("========="+fileName);
            int disLength = fileName.length();//获得字符串长度
            String shortName = fileName.substring(disLength - 5, disLength);//获取后缀
            System.out.println("===="+shortName);
            if (".docx".equals(shortName)){
                String s1 = fileName.replaceAll("/", "\\\\\\\\");//将/替换为\\
                String b = "D:\\\\ruoyi\\\\uploadPath";//自定义路径
                System.out.println("s1"+s1);
                String s2 = s1.substring(9);//"va,javac,javae"  //截取掉前9位
                System.out.println("s2"+s2);
                String uid = UUID.randomUUID().toString();
                String kk = "D:\\\\ruoyi\\\\uploadPath\\\\upload\\\\";
                String pdf = ".pdf";

                //插件将word转换为pdf
                Document document = new Document();
                document.loadFromFile(b + s2);
                document.saveToFile(kk + uid + pdf, FileFormat.PDF);

                String dizhi = kk + uid + pdf;
                String llll = "/profile/upload/";
                String urll = llll + uid + pdf;
                String url = serverConfig.getUrl() + urll;
                AjaxResult ajax = AjaxResult.success();
                ajax.put("fileName", dizhi);
                ajax.put("url", url);
                System.out.println("fileName================="+fileName);
                System.out.println("url================="+url);
                return ajax;
            }else{
                String shortNames = fileName.substring(disLength - 4, disLength);//获取后缀
                if (shortNames.equals(".doc")) {//判断是否为word
                    String s1 = fileName.replaceAll("/", "\\\\\\\\");//将/替换为\\
                    String b = "D:\\\\ruoyi\\\\uploadPath";//自定义路径
                    System.out.println("s1"+s1);
                    String s2 = s1.substring(9);//"va,javac,javae"  //截取掉前9位
                    System.out.println("s2"+s2);
                    String uid = UUID.randomUUID().toString();
                    String kk = "D:\\\\ruoyi\\\\uploadPath\\\\upload\\\\";
                    String pdf = ".pdf";

                    //插件将word转换为pdf
                    Document document = new Document();
                    document.loadFromFile(b + s2);
                    document.saveToFile(kk + uid + pdf, FileFormat.PDF);

                    String dizhi = kk + uid + pdf;
                    String llll = "/profile/upload/";
                    String urll = llll + uid + pdf;
                    String url = serverConfig.getUrl() + urll;
                    AjaxResult ajax = AjaxResult.success();
                    ajax.put("fileName", dizhi);
                    ajax.put("url", url);
                    System.out.println("fileName================="+fileName);
                    System.out.println("url================="+url);
                    return ajax;
                }//如果为pdf执行
                String url = serverConfig.getUrl() + fileName;
                AjaxResult ajax = AjaxResult.success();
                ajax.put("fileName", fileName);
                ajax.put("url", url);
                return ajax;
            }
        } catch (Exception e) {
            return AjaxResult.error(e.getMessage());
        }


    }

    /**
     * 本地资源通用下载
     */
    @GetMapping("/common/download/resource")
    public void resourceDownload(String resource, HttpServletRequest request, HttpServletResponse response)
            throws Exception
    {
        // 本地资源路径
        String localPath = Global.getProfile();
        // 数据库资源地址
        String downloadPath = localPath + StringUtils.substringAfter(resource, Constants.RESOURCE_PREFIX);
        // 下载名称
        String downloadName = StringUtils.substringAfterLast(downloadPath, "/");

        response.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE);
        FileUtils.setAttachmentResponseHeader(response, downloadName);

        FileUtils.writeBytes(downloadPath, response.getOutputStream());
    }
}
